Partial ia32 implementation of optimized try/catch (by Kevin Millikin)

src/ia32/lithium-ia32.h

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 55 matching lines @@
   V(CheckFunction)                              \
   V(CheckInstanceType)                          \
   V(CheckMaps)                                  \
   V(CheckNonSmi)                                \
   V(CheckPrototypeMaps)                         \
   V(CheckSmi)                                   \
   V(ClampDToUint8)                              \
   V(ClampIToUint8)                              \
   V(ClampTToUint8)                              \
   V(ClassOfTestAndBranch)                       \
+  V(CmpConstantEqAndBranch)                     \
   V(CmpIDAndBranch)                             \
+  V(CmpMapAndBranch)                            \
   V(CmpObjectEqAndBranch)                       \
-  V(CmpMapAndBranch)                            \
   V(CmpT)                                       \
-  V(CmpConstantEqAndBranch)                     \
   V(ConstantD)                                  \
   V(ConstantI)                                  \
   V(ConstantT)                                  \
   V(Context)                                    \
   V(DeclareGlobals)                             \
   V(DeleteProperty)                             \
   V(Deoptimize)                                 \
   V(DivI)                                       \
   V(DoubleToI)                                  \
   V(ElementsKind)                               \
+  V(EnterTry)                                   \
   V(FastLiteral)                                \
   V(FixedArrayBaseLength)                       \
   V(FunctionLiteral)                            \
   V(GetCachedArrayIndex)                        \
   V(GlobalObject)                               \
   V(GlobalReceiver)                             \
   V(Goto)                                       \
   V(HasCachedArrayIndexAndBranch)               \
   V(HasInstanceTypeAndBranch)                   \
   V(In)                                         \
   V(InstanceOf)                                 \
   V(InstanceOfKnownGlobal)                      \
   V(InstructionGap)                             \
   V(Integer32ToDouble)                          \
   V(Uint32ToDouble)                             \
   V(InvokeFunction)                             \
   V(IsConstructCallAndBranch)                   \
   V(IsNilAndBranch)                             \
   V(IsObjectAndBranch)                          \
+  V(IsSmiAndBranch)                             \
   V(IsStringAndBranch)                          \
-  V(IsSmiAndBranch)                             \
   V(IsUndetectableAndBranch)                    \
   V(JSArrayLength)                              \
   V(Label)                                      \
   V(LazyBailout)                                \
+  V(LeaveTry)                                   \
   V(LoadContextSlot)                            \
   V(LoadElements)                               \
   V(LoadExternalArrayPointer)                   \
   V(LoadFunctionPrototype)                      \
   V(LoadGlobalCell)                             \
   V(LoadGlobalGeneric)                          \
+  V(LoadKeyedFastDoubleElement)                 \
   V(LoadKeyedFastElement)                       \
-  V(LoadKeyedFastDoubleElement)                 \
   V(LoadKeyedGeneric)                           \
   V(LoadKeyedSpecializedArrayElement)           \
   V(LoadNamedField)                             \
   V(LoadNamedFieldPolymorphic)                  \
   V(LoadNamedGeneric)                           \
   V(MapEnumLength)                              \
   V(MathFloorOfDiv)                             \
   V(MathMinMax)                                 \
   V(MathPowHalf)                                \
   V(ModI)                                       \
@@ skipping 270 matching lines @@
   LLabel* replacement() const { return replacement_; }
   void set_replacement(LLabel* label) { replacement_ = label; }
   bool HasReplacement() const { return replacement_ != NULL; }
 
  private:
   Label label_;
   LLabel* replacement_;
 };
 
 
+class LEnterTry: public LTemplateInstruction<0, 0, 0> {
+ public:
+  DECLARE_CONCRETE_INSTRUCTION(EnterTry, "enter-try")
+  DECLARE_HYDROGEN_ACCESSOR(EnterTry);
+
+  int index() { return hydrogen()->index(); }
+};
+
+
+class LLeaveTry: public LTemplateInstruction<0, 0, 0> {
+ public:
+  DECLARE_CONCRETE_INSTRUCTION(LeaveTry, "leave-try")
+};
+
+
 class LParameter: public LTemplateInstruction<1, 0, 0> {
  public:
   DECLARE_CONCRETE_INSTRUCTION(Parameter, "parameter")
 };
 
 
 class LCallStub: public LTemplateInstruction<1, 1, 0> {
  public:
   explicit LCallStub(LOperand* context) {
     inputs_[0] = context;
@@ skipping 2134 matching lines @@
 
   DISALLOW_COPY_AND_ASSIGN(LChunkBuilder);
 };
 
 #undef DECLARE_HYDROGEN_ACCESSOR
 #undef DECLARE_CONCRETE_INSTRUCTION
 
 } }  // namespace v8::internal
 
 #endif  // V8_IA32_LITHIUM_IA32_H_